Is there something my hairdresser could put on my facelift incisions to protect them when coloring my hair?

As a facelift specialist, in our practice I have developed an easy to follow protocol for my patients regarding hair coloring.  In summary, get the hair colored a few days before surgery, and then resume the usual hair coloring schedule about 3 weeks after the facelift.  At this point of healing the typical chemicals used in a salon should not damage the incision. For patients with sensitive skin, the stylist can protect the incision with  lotion that they use to protect the skin from getting stained form hair dye.  When need be, I allow my patients to touch up their hair sooner, with special instructions, depending on the incision placement. 

I agree with the others that at 9 weeks you really should not have any troubles with coloring your hair.  Use of vaseline or aquaphor along the incision line can add a degree of protection.